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<h1>navo/algorithm/nonlinear/binary/rblnk.c</h1>  </div>
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<a href="rblnk_8c.html">浏览该文件的文档。</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */</span>
<a name="l00011"></a>00011 <span class="preprocessor">#include &quot;<a class="code" href="rblnk_8h.html" title="Red-black linked tree.">rblnk.h</a>&quot;</span>
<a name="l00012"></a>00012 
<a name="l00013"></a>00013 <span class="preprocessor">#ifdef _MSC_VER</span>
<a name="l00014"></a>00014 <span class="preprocessor"></span><span class="preprocessor">#pragma optimize(&quot;t&quot;, on)</span>
<a name="l00015"></a>00015 <span class="preprocessor"></span><span class="preprocessor">#endif  </span><span class="comment">/* #ifdef _MSC_VER */</span>
<a name="l00016"></a>00016 
<a name="l00017"></a>00017 <span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00018"></a>00018 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">&quot;C&quot;</span> {
<a name="l00019"></a>00019 <span class="preprocessor">#endif </span><span class="comment">/* #ifdef __cplusplus */</span>
<a name="l00020"></a>00020 
<a name="l00021"></a>00021 <span class="keyword">static</span> <span class="keyword">inline</span> rblnk_link_left(<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> parent, <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> child)
<a name="l00022"></a>00022 {
<a name="l00023"></a>00023     parent-&gt;left = child;
<a name="l00024"></a>00024     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga5474c6caddd6bdba98f8e126d411d580" title="仅在node不为空时，设置node的父节点">rblnk_set_parent_if</a>(child, parent);
<a name="l00025"></a>00025 }
<a name="l00026"></a>00026 
<a name="l00027"></a>00027 <span class="keyword">static</span> <span class="keyword">inline</span> rblnk_link_right(<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> parent, <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> child)
<a name="l00028"></a>00028 {
<a name="l00029"></a>00029     parent-&gt;right = child;
<a name="l00030"></a>00030     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga5474c6caddd6bdba98f8e126d411d580" title="仅在node不为空时，设置node的父节点">rblnk_set_parent_if</a>(child, parent);
<a name="l00031"></a>00031 }
<a name="l00032"></a>00032 
<a name="l00033"></a>00033 <span class="keyword">static</span> <span class="keyword">inline</span> rblnk_link_left_unsafe(<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> parent, <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> child)
<a name="l00034"></a>00034 {
<a name="l00035"></a>00035     parent-&gt;left = child;
<a name="l00036"></a>00036     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga6f05bc6d011c149bc85e3667240a6f27" title="设置当前节点的父节点">rblnk_set_parent</a>(child, parent);
<a name="l00037"></a>00037 }
<a name="l00038"></a>00038 
<a name="l00039"></a>00039 <span class="keyword">static</span> <span class="keyword">inline</span> rblnk_link_right_unsafe(<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> parent, <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> child)
<a name="l00040"></a>00040 {
<a name="l00041"></a>00041     parent-&gt;right = child;
<a name="l00042"></a>00042     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga6f05bc6d011c149bc85e3667240a6f27" title="设置当前节点的父节点">rblnk_set_parent</a>(child, parent);
<a name="l00043"></a>00043 }
<a name="l00044"></a>00044 
<a name="l00045"></a>00045 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> rblnk_replace_child(<a class="code" href="structrblnk__root.html" title="树根">rblnk_root</a>* root, <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> me, 
<a name="l00046"></a>00046                         <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> old_child, <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> new_child)
<a name="l00047"></a>00047 {
<a name="l00048"></a>00048     <span class="keywordflow">if</span> (me) {
<a name="l00049"></a>00049         <span class="keywordflow">if</span> (old_child == me-&gt;left)
<a name="l00050"></a>00050             me-&gt;left = new_child;
<a name="l00051"></a>00051         <span class="keywordflow">else</span>
<a name="l00052"></a>00052             me-&gt;right = new_child;
<a name="l00053"></a>00053     } <span class="keywordflow">else</span>
<a name="l00054"></a>00054         root-&gt;node = new_child;
<a name="l00055"></a>00055 }
<a name="l00056"></a>00056 
<a name="l00057"></a>00057 <span class="comment">/* 对top节点进行左旋转 */</span>
<a name="l00058"></a>00058 <span class="keyword">static</span> <span class="keywordtype">void</span> rblnk_rotate_left(<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gaf7a22577e5f8f2d8c3ab96f378465658" title="节点">rblnk_node</a>* top, <a class="code" href="structrblnk__root.html" title="树根">rblnk_root</a>* root)
<a name="l00059"></a>00059 {
<a name="l00060"></a>00060     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gaf7a22577e5f8f2d8c3ab96f378465658" title="节点">rblnk_node</a>* parent = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gac9b28b4b852f74baf30eda817e2144b1" title="得到父节点">rblnk_parent</a>(top);
<a name="l00061"></a>00061     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gaf7a22577e5f8f2d8c3ab96f378465658" title="节点">rblnk_node</a>* node = top-&gt;right;
<a name="l00062"></a>00062     rblnk_link_right(top, node-&gt;left);
<a name="l00063"></a>00063     rblnk_link_left_unsafe(node, top);
<a name="l00064"></a>00064     rblnk_replace_child(root, parent, top, node);
<a name="l00065"></a>00065     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga6f05bc6d011c149bc85e3667240a6f27" title="设置当前节点的父节点">rblnk_set_parent</a>(node, parent);
<a name="l00066"></a>00066 }
<a name="l00067"></a>00067 
<a name="l00068"></a>00068 <span class="comment">/* 对top节点进行右旋转 */</span>
<a name="l00069"></a>00069 <span class="keyword">static</span> <span class="keywordtype">void</span> rblnk_rotate_right(<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gaf7a22577e5f8f2d8c3ab96f378465658" title="节点">rblnk_node</a>* top, <a class="code" href="structrblnk__root.html" title="树根">rblnk_root</a>* root)
<a name="l00070"></a>00070 {
<a name="l00071"></a>00071     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gaf7a22577e5f8f2d8c3ab96f378465658" title="节点">rblnk_node</a>* parent = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gac9b28b4b852f74baf30eda817e2144b1" title="得到父节点">rblnk_parent</a>(top);
<a name="l00072"></a>00072     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gaf7a22577e5f8f2d8c3ab96f378465658" title="节点">rblnk_node</a>* node = top-&gt;left;
<a name="l00073"></a>00073     rblnk_link_left(top, node-&gt;right);
<a name="l00074"></a>00074     rblnk_link_right_unsafe(node, top);
<a name="l00075"></a>00075     rblnk_replace_child(root, parent, top, node);
<a name="l00076"></a>00076     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga6f05bc6d011c149bc85e3667240a6f27" title="设置当前节点的父节点">rblnk_set_parent</a>(node, parent);
<a name="l00077"></a>00077 }
<a name="l00078"></a>00078 
<a name="l00079"></a><a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gade0f9a8b187659eb069ba5db9d8af195">00079</a> NV_IMPL <span class="keywordtype">void</span> <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gade0f9a8b187659eb069ba5db9d8af195" title="插入节点后，对树进行着色调整">rblnk_coloring</a>(<a class="code" href="structrblnk__root.html" title="树根">rblnk_root</a>* root, <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gaf7a22577e5f8f2d8c3ab96f378465658" title="节点">rblnk_node</a>* node, 
<a name="l00080"></a>00080                                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gaf7a22577e5f8f2d8c3ab96f378465658" title="节点">rblnk_node</a>* parent)
<a name="l00081"></a>00081 {   <span class="comment">/* 如果有父节点且父节点是红色的，则对树进行修正 */</span>
<a name="l00082"></a>00082     <span class="keywordflow">while</span> (parent &amp;&amp; <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga7f6bea5de9fffaed975df98753c20bed" title="判断节点是否是红色的">rblnk_red</a>(parent)) {
<a name="l00083"></a>00083         <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> gparent = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gac9b28b4b852f74baf30eda817e2144b1" title="得到父节点">rblnk_parent</a>(parent);
<a name="l00084"></a>00084         <span class="keywordflow">if</span> (parent == gparent-&gt;left) {
<a name="l00085"></a>00085             <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> uncle = gparent-&gt;right;
<a name="l00086"></a>00086 
<a name="l00087"></a>00087             <span class="comment">/* 如果有叔节点且叔节点为红色，则将叔节点和父节点涂黑，将祖父节点涂红 */</span>
<a name="l00088"></a>00088             <span class="keywordflow">if</span> (uncle &amp;&amp; <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga7f6bea5de9fffaed975df98753c20bed" title="判断节点是否是红色的">rblnk_red</a>(uncle)) {
<a name="l00089"></a>00089                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga700dde2e01a11e733893be4dccaca0c6" title="设置当前节点的颜色为黑色">rblnk_set_black</a>(uncle);
<a name="l00090"></a>00090                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga700dde2e01a11e733893be4dccaca0c6" title="设置当前节点的颜色为黑色">rblnk_set_black</a>(parent);
<a name="l00091"></a>00091                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga3943690f21dc9dee488c35313f7d093f" title="设置当前节点的颜色为红色">rblnk_set_red</a>(gparent);
<a name="l00092"></a>00092                 <span class="comment">/* 祖父节点下的路径已经调整完成，进行下一轮调整 */</span>
<a name="l00093"></a>00093                 parent = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gac9b28b4b852f74baf30eda817e2144b1" title="得到父节点">rblnk_parent</a>(node = gparent);
<a name="l00094"></a>00094                 <span class="keywordflow">continue</span>;
<a name="l00095"></a>00095             }
<a name="l00096"></a>00096             <span class="comment">/* 如果没有叔节点或叔节点是黑色的 */</span>
<a name="l00097"></a>00097             <span class="keywordflow">if</span> (node == parent-&gt;right) {
<a name="l00098"></a>00098                 <span class="comment">/* 如果父节点是祖父节点的左子且新节点是父节点的右子，</span>
<a name="l00099"></a>00099 <span class="comment">                 * 对父节点进行左旋，此时新节点成了原父节点的父节点</span>
<a name="l00100"></a>00100 <span class="comment">                 * 且新节点和原父节点都是红色的</span>
<a name="l00101"></a>00101 <span class="comment">                 */</span>
<a name="l00102"></a>00102                 rblnk_rotate_left(parent, root); {
<a name="l00103"></a>00103                     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> tmp = parent;
<a name="l00104"></a>00104                     parent = node;
<a name="l00105"></a>00105                     node = tmp;
<a name="l00106"></a>00106                 }
<a name="l00107"></a>00107             }
<a name="l00108"></a>00108             <span class="comment">/* 此时父节点和左子是红色的，将父节点涂黑，祖父节点涂红，</span>
<a name="l00109"></a>00109 <span class="comment">             * 再对祖父节点进行右旋，即完成调整</span>
<a name="l00110"></a>00110 <span class="comment">             */</span>
<a name="l00111"></a>00111             <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga700dde2e01a11e733893be4dccaca0c6" title="设置当前节点的颜色为黑色">rblnk_set_black</a>(parent);
<a name="l00112"></a>00112             <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga3943690f21dc9dee488c35313f7d093f" title="设置当前节点的颜色为红色">rblnk_set_red</a>(gparent);
<a name="l00113"></a>00113             rblnk_rotate_right(gparent, root);
<a name="l00114"></a>00114             parent = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gac9b28b4b852f74baf30eda817e2144b1" title="得到父节点">rblnk_parent</a>(node);
<a name="l00115"></a>00115         } <span class="keywordflow">else</span> {
<a name="l00116"></a>00116             <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> uncle = gparent-&gt;left;
<a name="l00117"></a>00117 
<a name="l00118"></a>00118             <span class="comment">/* 如果有叔节点且叔节点为红色，则将叔节点和父节点涂黑，将祖父节点涂红 */</span>
<a name="l00119"></a>00119             <span class="keywordflow">if</span> (uncle &amp;&amp; <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga7f6bea5de9fffaed975df98753c20bed" title="判断节点是否是红色的">rblnk_red</a>(uncle)) {
<a name="l00120"></a>00120                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga700dde2e01a11e733893be4dccaca0c6" title="设置当前节点的颜色为黑色">rblnk_set_black</a>(uncle);
<a name="l00121"></a>00121                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga700dde2e01a11e733893be4dccaca0c6" title="设置当前节点的颜色为黑色">rblnk_set_black</a>(parent);
<a name="l00122"></a>00122                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga3943690f21dc9dee488c35313f7d093f" title="设置当前节点的颜色为红色">rblnk_set_red</a>(gparent);
<a name="l00123"></a>00123                 <span class="comment">/* 祖父节点下的路径已经调整完成，进行下一轮调整 */</span>
<a name="l00124"></a>00124                 parent = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gac9b28b4b852f74baf30eda817e2144b1" title="得到父节点">rblnk_parent</a>(node = gparent);
<a name="l00125"></a>00125                 <span class="keywordflow">continue</span>;
<a name="l00126"></a>00126             }
<a name="l00127"></a>00127             <span class="comment">/* 如果没有叔节点或叔节点是黑色的 */</span>
<a name="l00128"></a>00128             <span class="keywordflow">if</span> (node == parent-&gt;left) {
<a name="l00129"></a>00129                 <span class="comment">/* 或父节点是祖父节点的右子且新节点是父节点的左子，</span>
<a name="l00130"></a>00130 <span class="comment">                 * 对父节点进行右旋，此时新节点成了原父节点的父节点</span>
<a name="l00131"></a>00131 <span class="comment">                 * 且新节点和原父节点都是红色的</span>
<a name="l00132"></a>00132 <span class="comment">                 */</span>
<a name="l00133"></a>00133                 rblnk_rotate_right(parent, root); {
<a name="l00134"></a>00134                     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> tmp = parent;
<a name="l00135"></a>00135                     parent = node;
<a name="l00136"></a>00136                     node = tmp;
<a name="l00137"></a>00137                 }
<a name="l00138"></a>00138             }
<a name="l00139"></a>00139             <span class="comment">/* 此时父节点和右子是红色的，将父节点涂黑，祖父节点涂红，</span>
<a name="l00140"></a>00140 <span class="comment">             * 再对祖父节点进行左旋，即完成调整</span>
<a name="l00141"></a>00141 <span class="comment">             */</span>
<a name="l00142"></a>00142             <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga700dde2e01a11e733893be4dccaca0c6" title="设置当前节点的颜色为黑色">rblnk_set_black</a>(parent);
<a name="l00143"></a>00143             <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga3943690f21dc9dee488c35313f7d093f" title="设置当前节点的颜色为红色">rblnk_set_red</a>(gparent);
<a name="l00144"></a>00144             rblnk_rotate_left(gparent, root);
<a name="l00145"></a>00145             parent = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gac9b28b4b852f74baf30eda817e2144b1" title="得到父节点">rblnk_parent</a>(node);
<a name="l00146"></a>00146         }
<a name="l00147"></a>00147     }
<a name="l00148"></a>00148     <span class="comment">/* (1)没有父节点，则直接将新节点涂黑作为根节点</span>
<a name="l00149"></a>00149 <span class="comment">     * (2)父节点是黑色的，则直接插入新节点不影响树</span>
<a name="l00150"></a>00150 <span class="comment">     * (3)经过对树的调整后，将新节点涂黑</span>
<a name="l00151"></a>00151 <span class="comment">     */</span>
<a name="l00152"></a>00152     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga700dde2e01a11e733893be4dccaca0c6" title="设置当前节点的颜色为黑色">rblnk_set_black</a>(root-&gt;node);
<a name="l00153"></a>00153 }
<a name="l00154"></a>00154 
<a name="l00155"></a>00155 <span class="comment">/* 判断是否存在节点node，且node是黑色的 */</span>
<a name="l00156"></a>00156 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> rblnk_black_if(<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> node)
<a name="l00157"></a>00157 {
<a name="l00158"></a>00158     <span class="keywordflow">return</span> (!node || <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga6e91c6985df0a43de84afc2c55d47c04" title="判断节点是否是黑色的">rblnk_black</a>(node));
<a name="l00159"></a>00159 }
<a name="l00160"></a>00160 
<a name="l00161"></a>00161 <span class="comment">/* 擦除颜色 */</span>
<a name="l00162"></a>00162 <span class="keyword">static</span> <span class="keywordtype">void</span> __rblnk_erase_color(<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gaf7a22577e5f8f2d8c3ab96f378465658" title="节点">rblnk_node</a>* node, <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gaf7a22577e5f8f2d8c3ab96f378465658" title="节点">rblnk_node</a>* parent, 
<a name="l00163"></a>00163                                     <a class="code" href="structrblnk__root.html" title="树根">rblnk_root</a>* root)
<a name="l00164"></a>00164 {
<a name="l00165"></a>00165     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> sibling;
<a name="l00166"></a>00166 
<a name="l00167"></a>00167     <span class="comment">/* node节点是黑色的且不为根节点 */</span>
<a name="l00168"></a>00168     <span class="keywordflow">while</span> (rblnk_black_if(node) &amp;&amp; node != root-&gt;node) {
<a name="l00169"></a>00169         <span class="keywordflow">if</span> (node == parent-&gt;left) {
<a name="l00170"></a>00170             sibling = parent-&gt;right;
<a name="l00171"></a>00171             <span class="keywordflow">if</span> (<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga7f6bea5de9fffaed975df98753c20bed" title="判断节点是否是红色的">rblnk_red</a>(sibling)) {
<a name="l00172"></a>00172                 <span class="comment">/* 兄弟节点是红色的 */</span>
<a name="l00173"></a>00173                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga700dde2e01a11e733893be4dccaca0c6" title="设置当前节点的颜色为黑色">rblnk_set_black</a>(sibling);
<a name="l00174"></a>00174                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga3943690f21dc9dee488c35313f7d093f" title="设置当前节点的颜色为红色">rblnk_set_red</a>(parent);
<a name="l00175"></a>00175                 rblnk_rotate_left(parent, root);
<a name="l00176"></a>00176                 <span class="comment">/* sibling指向新的兄弟节点且该节点一定是黑色的 */</span>
<a name="l00177"></a>00177                 sibling = parent-&gt;right;
<a name="l00178"></a>00178             }
<a name="l00179"></a>00179             <span class="keywordflow">if</span> (rblnk_black_if(sibling-&gt;left) &amp;&amp; 
<a name="l00180"></a>00180                 rblnk_black_if(sibling-&gt;right)) {
<a name="l00181"></a>00181                 <span class="comment">/* 兄弟节点是黑色的且它两个孩子节点也是黑色的 */</span>
<a name="l00182"></a>00182                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga3943690f21dc9dee488c35313f7d093f" title="设置当前节点的颜色为红色">rblnk_set_red</a>(sibling);
<a name="l00183"></a>00183                 node = parent;
<a name="l00184"></a>00184                 parent = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gac9b28b4b852f74baf30eda817e2144b1" title="得到父节点">rblnk_parent</a>(node);
<a name="l00185"></a>00185             } <span class="keywordflow">else</span> {
<a name="l00186"></a>00186                 <span class="comment">/* 兄弟节点是黑色的且有红色孩子节点 */</span>
<a name="l00187"></a>00187                 <span class="keywordflow">if</span> (rblnk_black_if(sibling-&gt;right)) {
<a name="l00188"></a>00188                     <span class="comment">/* 如果兄弟节点右子节点为空或是黑色的，则左子一定是红色，</span>
<a name="l00189"></a>00189 <span class="comment">                     * 利用旋转将其转换成右子节点为红色</span>
<a name="l00190"></a>00190 <span class="comment">                     */</span>
<a name="l00191"></a>00191                     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga700dde2e01a11e733893be4dccaca0c6" title="设置当前节点的颜色为黑色">rblnk_set_black</a>(sibling-&gt;left);
<a name="l00192"></a>00192                     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga3943690f21dc9dee488c35313f7d093f" title="设置当前节点的颜色为红色">rblnk_set_red</a>(sibling);
<a name="l00193"></a>00193                     rblnk_rotate_right(sibling, root);
<a name="l00194"></a>00194                     sibling = parent-&gt;right;
<a name="l00195"></a>00195                 }
<a name="l00196"></a>00196                 <span class="comment">/* 这里，兄弟节点有一个红色的右子节点 */</span>
<a name="l00197"></a>00197                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gab43d3dd00f5f9797f2e6728804388546" title="设置当前节点的颜色">rblnk_set_color</a>(sibling, <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga6abde00d596cf397ea6ccc5e5724f1e0" title="得到节点的颜色值">rblnk_color</a>(parent));
<a name="l00198"></a>00198                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga700dde2e01a11e733893be4dccaca0c6" title="设置当前节点的颜色为黑色">rblnk_set_black</a>(parent);
<a name="l00199"></a>00199                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga700dde2e01a11e733893be4dccaca0c6" title="设置当前节点的颜色为黑色">rblnk_set_black</a>(sibling-&gt;right);
<a name="l00200"></a>00200                 rblnk_rotate_left(parent, root);
<a name="l00201"></a>00201                 <span class="comment">/* 将根节点涂黑 */</span>
<a name="l00202"></a>00202                 node = root-&gt;node;
<a name="l00203"></a>00203                 <span class="comment">/* 完成调整 */</span>
<a name="l00204"></a>00204                 <span class="keywordflow">break</span>;
<a name="l00205"></a>00205             }
<a name="l00206"></a>00206         } <span class="keywordflow">else</span> {
<a name="l00207"></a>00207             sibling = parent-&gt;left;
<a name="l00208"></a>00208             <span class="keywordflow">if</span> (<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga7f6bea5de9fffaed975df98753c20bed" title="判断节点是否是红色的">rblnk_red</a>(sibling)) {
<a name="l00209"></a>00209                 <span class="comment">/* 兄弟节点是红色的 */</span>
<a name="l00210"></a>00210                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga700dde2e01a11e733893be4dccaca0c6" title="设置当前节点的颜色为黑色">rblnk_set_black</a>(sibling);
<a name="l00211"></a>00211                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga3943690f21dc9dee488c35313f7d093f" title="设置当前节点的颜色为红色">rblnk_set_red</a>(parent);
<a name="l00212"></a>00212                 rblnk_rotate_right(parent, root);
<a name="l00213"></a>00213                 <span class="comment">/* sibling指向新的兄弟节点且该节点一定是黑色的 */</span>
<a name="l00214"></a>00214                 sibling = parent-&gt;left;
<a name="l00215"></a>00215             }
<a name="l00216"></a>00216             <span class="keywordflow">if</span> (rblnk_black_if(sibling-&gt;left) &amp;&amp; 
<a name="l00217"></a>00217                 rblnk_black_if(sibling-&gt;right)) {
<a name="l00218"></a>00218                 <span class="comment">/* 兄弟节点是黑色的且它两个孩子节点也是黑色的 */</span>
<a name="l00219"></a>00219                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga3943690f21dc9dee488c35313f7d093f" title="设置当前节点的颜色为红色">rblnk_set_red</a>(sibling);
<a name="l00220"></a>00220                 node = parent;
<a name="l00221"></a>00221                 parent = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gac9b28b4b852f74baf30eda817e2144b1" title="得到父节点">rblnk_parent</a>(node);
<a name="l00222"></a>00222             } <span class="keywordflow">else</span> {
<a name="l00223"></a>00223                 <span class="comment">/* 兄弟节点是黑色的且有红色孩子节点 */</span>
<a name="l00224"></a>00224                 <span class="keywordflow">if</span> (rblnk_black_if(sibling-&gt;left)) {
<a name="l00225"></a>00225                     <span class="comment">/* 如果兄弟节点左子节点为空或是黑色的，则右子一定是红色，</span>
<a name="l00226"></a>00226 <span class="comment">                     * 利用旋转将其转换成右子节点为红色</span>
<a name="l00227"></a>00227 <span class="comment">                     */</span>
<a name="l00228"></a>00228                     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga700dde2e01a11e733893be4dccaca0c6" title="设置当前节点的颜色为黑色">rblnk_set_black</a>(sibling-&gt;right);
<a name="l00229"></a>00229                     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga3943690f21dc9dee488c35313f7d093f" title="设置当前节点的颜色为红色">rblnk_set_red</a>(sibling);
<a name="l00230"></a>00230                     rblnk_rotate_left(sibling, root);
<a name="l00231"></a>00231                     sibling = parent-&gt;left;
<a name="l00232"></a>00232                 }
<a name="l00233"></a>00233                 <span class="comment">/* 这里，兄弟节点有一个红色的右子节点 */</span>
<a name="l00234"></a>00234                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gab43d3dd00f5f9797f2e6728804388546" title="设置当前节点的颜色">rblnk_set_color</a>(sibling, <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga6abde00d596cf397ea6ccc5e5724f1e0" title="得到节点的颜色值">rblnk_color</a>(parent));
<a name="l00235"></a>00235                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga700dde2e01a11e733893be4dccaca0c6" title="设置当前节点的颜色为黑色">rblnk_set_black</a>(parent);
<a name="l00236"></a>00236                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga700dde2e01a11e733893be4dccaca0c6" title="设置当前节点的颜色为黑色">rblnk_set_black</a>(sibling-&gt;left);
<a name="l00237"></a>00237                 rblnk_rotate_right(parent, root);
<a name="l00238"></a>00238                 <span class="comment">/* 将根节点涂黑 */</span>
<a name="l00239"></a>00239                 node = root-&gt;node;
<a name="l00240"></a>00240                 <span class="comment">/* 完成调整 */</span>
<a name="l00241"></a>00241                 <span class="keywordflow">break</span>;
<a name="l00242"></a>00242             }
<a name="l00243"></a>00243         }
<a name="l00244"></a>00244     }
<a name="l00245"></a>00245     <span class="comment">/* 如果节点为红色或者是根节点，直接涂黑 */</span>
<a name="l00246"></a>00246     <span class="keywordflow">if</span> (node)
<a name="l00247"></a>00247         <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga700dde2e01a11e733893be4dccaca0c6" title="设置当前节点的颜色为黑色">rblnk_set_black</a>(node);
<a name="l00248"></a>00248 }
<a name="l00249"></a>00249 
<a name="l00250"></a><a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga451886a62143e4743fafb5b86a5b2a28">00250</a> NV_IMPL <span class="keywordtype">void</span> <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga451886a62143e4743fafb5b86a5b2a28" title="移除某个节点">rblnk_erase</a>(<a class="code" href="structrblnk__root.html" title="树根">rblnk_root</a>* root, <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gaf7a22577e5f8f2d8c3ab96f378465658" title="节点">rblnk_node</a>* entry)
<a name="l00251"></a>00251 {
<a name="l00252"></a>00252     <span class="keywordtype">int</span> color;
<a name="l00253"></a>00253     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gaf7a22577e5f8f2d8c3ab96f378465658" title="节点">rblnk_node</a>* child;
<a name="l00254"></a>00254     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gaf7a22577e5f8f2d8c3ab96f378465658" title="节点">rblnk_node</a>* parent = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gac9b28b4b852f74baf30eda817e2144b1" title="得到父节点">rblnk_parent</a>(entry);
<a name="l00255"></a>00255 
<a name="l00256"></a>00256     <span class="keywordflow">do</span> {<span class="comment">/* 如果entry节点最多只有一个孩子，则直接删除entry节点</span>
<a name="l00257"></a>00257 <span class="comment">         * 并调整树，如果entry同时有两个孩子，需要将其转换成</span>
<a name="l00258"></a>00258 <span class="comment">         * 只有一子或无子的情况</span>
<a name="l00259"></a>00259 <span class="comment">         */</span>
<a name="l00260"></a>00260         <span class="keywordflow">if</span> (!entry-&gt;left) {
<a name="l00261"></a>00261             child = entry-&gt;right;
<a name="l00262"></a>00262         } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!entry-&gt;right) {
<a name="l00263"></a>00263             child = entry-&gt;left;
<a name="l00264"></a>00264         } <span class="keywordflow">else</span> {
<a name="l00265"></a>00265             <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gaf7a22577e5f8f2d8c3ab96f378465658" title="节点">rblnk_node</a>* node = entry-&gt;right;
<a name="l00266"></a>00266             <span class="comment">/* 找到最靠近entry节点右边的节点来交换，</span>
<a name="l00267"></a>00267 <span class="comment">             * 方法是先找右节点，再循环向左找到最左</span>
<a name="l00268"></a>00268 <span class="comment">             * 端的node节点，将该节点替换到entry节</span>
<a name="l00269"></a>00269 <span class="comment">             * 点的位置，此时树性质不受影响，问题转</span>
<a name="l00270"></a>00270 <span class="comment">             * 变成了删除找到的node节点的问题</span>
<a name="l00271"></a>00271 <span class="comment">             */</span>
<a name="l00272"></a>00272             <span class="keywordflow">while</span> (node-&gt;left)
<a name="l00273"></a>00273                 node = node-&gt;left;
<a name="l00274"></a>00274             <span class="comment">/* 将node节点设为entry父节点的孩子 */</span>
<a name="l00275"></a>00275             rblnk_replace_child(root, parent, entry, node);
<a name="l00276"></a>00276             <span class="comment">/* 记录node节点原来的节点信息，用于树的调整 */</span>
<a name="l00277"></a>00277             child = node-&gt;right;
<a name="l00278"></a>00278             parent = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gac9b28b4b852f74baf30eda817e2144b1" title="得到父节点">rblnk_parent</a>(node);
<a name="l00279"></a>00279             color = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga6abde00d596cf397ea6ccc5e5724f1e0" title="得到节点的颜色值">rblnk_color</a>(node);
<a name="l00280"></a>00280             <span class="keywordflow">if</span> (parent == entry) {
<a name="l00281"></a>00281                 <span class="comment">/* 说明找到的node节点是entry的右子 */</span>
<a name="l00282"></a>00282                 parent = node;
<a name="l00283"></a>00283             } <span class="keywordflow">else</span> {
<a name="l00284"></a>00284                 <span class="comment">/* 替换entry节点到node节点，相当</span>
<a name="l00285"></a>00285 <span class="comment">                 * 于删除了原来node位置的节点</span>
<a name="l00286"></a>00286 <span class="comment">                 */</span>
<a name="l00287"></a>00287                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga5474c6caddd6bdba98f8e126d411d580" title="仅在node不为空时，设置node的父节点">rblnk_set_parent_if</a>(child, parent);
<a name="l00288"></a>00288                 parent-&gt;left = child;
<a name="l00289"></a>00289                 rblnk_link_right_unsafe(node, entry-&gt;right);
<a name="l00290"></a>00290             }
<a name="l00291"></a>00291 
<a name="l00292"></a>00292             node-&gt;parent_color = entry-&gt;parent_color;
<a name="l00293"></a>00293             rblnk_link_left_unsafe(node, entry-&gt;left);
<a name="l00294"></a>00294 
<a name="l00295"></a>00295             <span class="comment">/* 调整树 */</span>
<a name="l00296"></a>00296             <span class="keywordflow">break</span>;
<a name="l00297"></a>00297         }
<a name="l00298"></a>00298         <span class="comment">/* 接上面的if和else if，删除entry节点 */</span>
<a name="l00299"></a>00299         color = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga6abde00d596cf397ea6ccc5e5724f1e0" title="得到节点的颜色值">rblnk_color</a>(entry);
<a name="l00300"></a>00300         <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga5474c6caddd6bdba98f8e126d411d580" title="仅在node不为空时，设置node的父节点">rblnk_set_parent_if</a>(child, parent);
<a name="l00301"></a>00301         rblnk_replace_child(root, parent, entry, child);
<a name="l00302"></a>00302     } <span class="keywordflow">while</span> (0);
<a name="l00303"></a>00303 
<a name="l00304"></a>00304     <span class="comment">/* color是待删除节点的颜色，如果是红色，删除对树没有影响，</span>
<a name="l00305"></a>00305 <span class="comment">     * 如果是黑色，需要对树进行调整</span>
<a name="l00306"></a>00306 <span class="comment">     */</span>
<a name="l00307"></a>00307     <span class="keywordflow">if</span> (color)
<a name="l00308"></a>00308         __rblnk_erase_color(child, parent, root);
<a name="l00309"></a>00309 }
<a name="l00310"></a>00310 
<a name="l00311"></a><a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gaa931c3dedfb8e0f288017fbf7a03b6b8">00311</a> NV_IMPL <span class="keywordtype">void</span> <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gaa931c3dedfb8e0f288017fbf7a03b6b8" title="移除区域内的节点">rblnk_erases</a>(<a class="code" href="structrblnk__root.html" title="树根">rblnk_root</a>* root, <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> begin, 
<a name="l00312"></a>00312                             <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> end, <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga7417aa626d7a0f898b5338b97411d546" title="单参数回调函数指针">rblnk_pr1</a> erase_handler)
<a name="l00313"></a>00313 {
<a name="l00314"></a>00314     <span class="keywordflow">if</span> (erase_handler) {
<a name="l00315"></a>00315         <span class="keywordflow">while</span> (begin != end) {
<a name="l00316"></a>00316             <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> cur = begin;
<a name="l00317"></a>00317             <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gabed6ad3d2a4042d6a2c382515eb95393" title="迭代器递增">rblnk_inc</a>(begin);
<a name="l00318"></a>00318             <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga451886a62143e4743fafb5b86a5b2a28" title="移除某个节点">rblnk_erase</a>(root, cur);
<a name="l00319"></a>00319             erase_handler(cur);
<a name="l00320"></a>00320         }
<a name="l00321"></a>00321 
<a name="l00322"></a>00322     } <span class="keywordflow">else</span> {
<a name="l00323"></a>00323         <span class="keywordflow">while</span> (begin != end)
<a name="l00324"></a>00324             <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga451886a62143e4743fafb5b86a5b2a28" title="移除某个节点">rblnk_erase</a>(root, <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga8c62a05a3806b173f707611bdd76a1b0" title="迭代器后自增">rblnk_inc_later</a>(begin));
<a name="l00325"></a>00325     }
<a name="l00326"></a>00326 }
<a name="l00327"></a>00327 
<a name="l00328"></a><a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gae9ac9b2b5c33a92e0306a09346ef32cc">00328</a> NV_IMPL <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gae9ac9b2b5c33a92e0306a09346ef32cc" title="给迭代器增加一段距离或减小一段距离">rblnk_advance</a>(<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> cur, <span class="keywordtype">int</span> dist)
<a name="l00329"></a>00329 {
<a name="l00330"></a>00330     <span class="keywordflow">if</span> (dist &gt; 0) {
<a name="l00331"></a>00331         <span class="keywordflow">while</span> (cur &amp;&amp; dist--)
<a name="l00332"></a>00332             <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gabed6ad3d2a4042d6a2c382515eb95393" title="迭代器递增">rblnk_inc</a>(cur);
<a name="l00333"></a>00333     } <span class="keywordflow">else</span> {
<a name="l00334"></a>00334         <span class="keywordflow">while</span> (cur &amp;&amp; dist++)
<a name="l00335"></a>00335             <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga5eef1427f5a3b2719c945271d9daeab6" title="迭代器递减">rblnk_dec</a>(cur);
<a name="l00336"></a>00336     }
<a name="l00337"></a>00337     <span class="keywordflow">return</span> cur;
<a name="l00338"></a>00338 }
<a name="l00339"></a>00339 
<a name="l00340"></a><a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga43f9873a6ad90b95af037efd8b715313">00340</a> NV_IMPL <span class="keywordtype">int</span> <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga43f9873a6ad90b95af037efd8b715313" title="判断一个节点是否存在于树中">rblnk_exist</a>(<a class="code" href="structrblnk__root.html" title="树根">rblnk_root</a>* root, <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> itr)
<a name="l00341"></a>00341 {
<a name="l00342"></a>00342     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> i = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gab434b46c3cb032b3114a0c292ee50c52" title="得到树的最左端节点">rblnk_front</a>(root);
<a name="l00343"></a>00343     
<a name="l00344"></a>00344     <span class="keywordflow">while</span> (i) {
<a name="l00345"></a>00345         <span class="keywordflow">if</span> (i == itr)
<a name="l00346"></a>00346             <span class="keywordflow">return</span> 1;
<a name="l00347"></a>00347         <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gabed6ad3d2a4042d6a2c382515eb95393" title="迭代器递增">rblnk_inc</a>(i);
<a name="l00348"></a>00348     }
<a name="l00349"></a>00349     
<a name="l00350"></a>00350     <span class="keywordflow">return</span> 0;
<a name="l00351"></a>00351 }
<a name="l00352"></a>00352 
<a name="l00353"></a><a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gab434b46c3cb032b3114a0c292ee50c52">00353</a> NV_IMPL <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gab434b46c3cb032b3114a0c292ee50c52" title="得到树的最左端节点">rblnk_front</a>(<a class="code" href="structrblnk__root.html" title="树根">rblnk_root</a>* root)
<a name="l00354"></a>00354 {
<a name="l00355"></a>00355     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> i = root-&gt;node;
<a name="l00356"></a>00356 
<a name="l00357"></a>00357     <span class="keywordflow">if</span> (!i)
<a name="l00358"></a>00358         <span class="keywordflow">return</span> NULL;
<a name="l00359"></a>00359 
<a name="l00360"></a>00360     <span class="comment">/* 一直往左边走，找到最左边的节点 */</span>
<a name="l00361"></a>00361     <span class="keywordflow">while</span> (i-&gt;left)
<a name="l00362"></a>00362         i = i-&gt;left;
<a name="l00363"></a>00363 
<a name="l00364"></a>00364     <span class="keywordflow">return</span> i;
<a name="l00365"></a>00365 }
<a name="l00366"></a>00366 
<a name="l00367"></a><a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga78d61eaa02e5a1af07b2da867776fd53">00367</a> NV_IMPL <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga78d61eaa02e5a1af07b2da867776fd53" title="得到树的最右端节点">rblnk_back</a>(<a class="code" href="structrblnk__root.html" title="树根">rblnk_root</a>* root)
<a name="l00368"></a>00368 {
<a name="l00369"></a>00369     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> i = root-&gt;node;
<a name="l00370"></a>00370     
<a name="l00371"></a>00371     <span class="keywordflow">if</span> (!i)
<a name="l00372"></a>00372         <span class="keywordflow">return</span> NULL;
<a name="l00373"></a>00373     
<a name="l00374"></a>00374     <span class="comment">/* 一直往右边走，找到最右边的节点 */</span>
<a name="l00375"></a>00375     <span class="keywordflow">while</span> (i-&gt;right)
<a name="l00376"></a>00376         i = i-&gt;right;
<a name="l00377"></a>00377     
<a name="l00378"></a>00378     <span class="keywordflow">return</span> i;
<a name="l00379"></a>00379 }
<a name="l00380"></a>00380 
<a name="l00381"></a><a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga724a069a61ec122e5a22a515eb6fc1ab">00381</a> NV_IMPL <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga724a069a61ec122e5a22a515eb6fc1ab" title="得到当前节点的中序后继节点">rblnk_next</a>(<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> cur)
<a name="l00382"></a>00382 {
<a name="l00383"></a>00383     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> parent;
<a name="l00384"></a>00384     
<a name="l00385"></a>00385     <span class="comment">/* 如果有右孩子，往右边走 */</span>
<a name="l00386"></a>00386     <span class="keywordflow">if</span> (cur-&gt;right) {
<a name="l00387"></a>00387         cur = cur-&gt;right;
<a name="l00388"></a>00388         <span class="comment">/* 找右孩子下最靠左的节点 */</span>
<a name="l00389"></a>00389         <span class="keywordflow">while</span> (cur-&gt;left)
<a name="l00390"></a>00390             cur = cur-&gt;left;
<a name="l00391"></a>00391         <span class="keywordflow">return</span> cur;
<a name="l00392"></a>00392     }
<a name="l00393"></a>00393     <span class="comment">/* 如果没有右孩子，向父节点走 */</span>
<a name="l00394"></a>00394     <span class="keywordflow">while</span> ((parent = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gac9b28b4b852f74baf30eda817e2144b1" title="得到父节点">rblnk_parent</a>(cur)) 
<a name="l00395"></a>00395             &amp;&amp; cur == parent-&gt;right)
<a name="l00396"></a>00396         cur = parent;
<a name="l00397"></a>00397     
<a name="l00398"></a>00398     <span class="keywordflow">return</span> parent;
<a name="l00399"></a>00399 }
<a name="l00400"></a>00400 
<a name="l00401"></a><a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gaf2372e7e19baf6c5fc1c2d1e46bcda2a">00401</a> NV_IMPL <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gaf2372e7e19baf6c5fc1c2d1e46bcda2a" title="得到当前节点的中序前驱节点">rblnk_prev</a>(<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> cur)
<a name="l00402"></a>00402 {
<a name="l00403"></a>00403     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> parent;
<a name="l00404"></a>00404 
<a name="l00405"></a>00405     <span class="comment">/* 如果有左孩子，往左边走 */</span>
<a name="l00406"></a>00406     <span class="keywordflow">if</span> (cur-&gt;left) {
<a name="l00407"></a>00407         cur = cur-&gt;left;
<a name="l00408"></a>00408         <span class="comment">/* 找左孩子下最靠右的节点 */</span>
<a name="l00409"></a>00409         <span class="keywordflow">while</span> (cur-&gt;right)
<a name="l00410"></a>00410             cur = cur-&gt;right;
<a name="l00411"></a>00411         <span class="keywordflow">return</span> cur;
<a name="l00412"></a>00412     }
<a name="l00413"></a>00413     <span class="comment">/* 如果没有左孩子，向父节点走 */</span>
<a name="l00414"></a>00414     <span class="keywordflow">while</span> ((parent = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gac9b28b4b852f74baf30eda817e2144b1" title="得到父节点">rblnk_parent</a>(cur)) 
<a name="l00415"></a>00415             &amp;&amp; cur == parent-&gt;left)
<a name="l00416"></a>00416         cur = parent;
<a name="l00417"></a>00417 
<a name="l00418"></a>00418     <span class="keywordflow">return</span> parent;
<a name="l00419"></a>00419 }
<a name="l00420"></a>00420 
<a name="l00421"></a><a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gacb852328ee3aacfe2e550c4b54b9949f">00421</a> NV_IMPL <span class="keywordtype">size_t</span> <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gacb852328ee3aacfe2e550c4b54b9949f" title="计算树的深度">rblnk_depth</a>(<a class="code" href="structrblnk__root.html" title="树根">rblnk_root</a>* root)
<a name="l00422"></a>00422 {
<a name="l00423"></a>00423     <span class="keywordtype">size_t</span> cur_depth;
<a name="l00424"></a>00424     <span class="keywordtype">size_t</span> max_depth = 0;
<a name="l00425"></a>00425     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> parent;
<a name="l00426"></a>00426     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> cur = root-&gt;node;
<a name="l00427"></a>00427     
<a name="l00428"></a>00428     <span class="keywordflow">if</span> (cur) {
<a name="l00429"></a>00429         cur_depth = 1;
<a name="l00430"></a>00430         <span class="keywordflow">while</span> (cur-&gt;left) {
<a name="l00431"></a>00431             cur = cur-&gt;left;
<a name="l00432"></a>00432             ++cur_depth;
<a name="l00433"></a>00433         }
<a name="l00434"></a>00434         max_depth = cur_depth;
<a name="l00435"></a>00435         <span class="keywordflow">do</span> {<span class="comment">/* 如果有右孩子，往右边走 */</span>
<a name="l00436"></a>00436             <span class="keywordflow">if</span> (cur-&gt;right) {
<a name="l00437"></a>00437                 cur = cur-&gt;right;
<a name="l00438"></a>00438                 ++cur_depth;
<a name="l00439"></a>00439                 <span class="comment">/* 找右孩子下最靠左的节点 */</span>
<a name="l00440"></a>00440                 <span class="keywordflow">while</span> (cur-&gt;left) {
<a name="l00441"></a>00441                     cur = cur-&gt;left;
<a name="l00442"></a>00442                     ++cur_depth;
<a name="l00443"></a>00443                 }
<a name="l00444"></a>00444                 <span class="keywordflow">if</span> (cur_depth &gt; max_depth)
<a name="l00445"></a>00445                     max_depth = cur_depth;
<a name="l00446"></a>00446             } <span class="keywordflow">else</span> {
<a name="l00447"></a>00447                 <span class="comment">/* 如果没有右孩子，向父节点走 */</span>
<a name="l00448"></a>00448                 <span class="keywordflow">while</span> ((parent = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gac9b28b4b852f74baf30eda817e2144b1" title="得到父节点">rblnk_parent</a>(cur)) 
<a name="l00449"></a>00449                         &amp;&amp; cur == parent-&gt;right) {
<a name="l00450"></a>00450                     cur = parent;
<a name="l00451"></a>00451                     --cur_depth;
<a name="l00452"></a>00452                 }
<a name="l00453"></a>00453                 cur = parent;
<a name="l00454"></a>00454                 --cur_depth;
<a name="l00455"></a>00455             }
<a name="l00456"></a>00456         } <span class="keywordflow">while</span> (cur);
<a name="l00457"></a>00457     }
<a name="l00458"></a>00458     
<a name="l00459"></a>00459     <span class="keywordflow">return</span> max_depth;
<a name="l00460"></a>00460 }
<a name="l00461"></a>00461 
<a name="l00462"></a><a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gacae9fbde870cca412c6f6faee36ec142">00462</a> NV_IMPL <span class="keywordtype">size_t</span> <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gacae9fbde870cca412c6f6faee36ec142" title="计算树的叶子数">rblnk_leafs</a>(<a class="code" href="structrblnk__root.html" title="树根">rblnk_root</a>* root)
<a name="l00463"></a>00463 {
<a name="l00464"></a>00464     <span class="keywordtype">size_t</span> leafs = 0;
<a name="l00465"></a>00465     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> parent;
<a name="l00466"></a>00466     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> cur = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gad090e3e5ab9b4f09b94e968233554a6b" title="得到指向正向起始位置的迭代器">rblnk_begin</a>(root);
<a name="l00467"></a>00467     
<a name="l00468"></a>00468     <span class="keywordflow">while</span> (cur) {
<a name="l00469"></a>00469         <span class="comment">/* 如果有右孩子，往右边走 */</span>
<a name="l00470"></a>00470         <span class="keywordflow">if</span> (cur-&gt;right) {
<a name="l00471"></a>00471             cur = cur-&gt;right;
<a name="l00472"></a>00472             <span class="comment">/* 找右孩子下最靠左的节点 */</span>
<a name="l00473"></a>00473             <span class="keywordflow">while</span> (cur-&gt;left)
<a name="l00474"></a>00474                 cur = cur-&gt;left;
<a name="l00475"></a>00475         } <span class="keywordflow">else</span> {
<a name="l00476"></a>00476             <span class="keywordflow">if</span> (!cur-&gt;left)
<a name="l00477"></a>00477                 ++leafs;
<a name="l00478"></a>00478             <span class="comment">/* 如果没有右孩子，向父节点走 */</span>
<a name="l00479"></a>00479             <span class="keywordflow">while</span> ((parent = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gac9b28b4b852f74baf30eda817e2144b1" title="得到父节点">rblnk_parent</a>(cur)) 
<a name="l00480"></a>00480                     &amp;&amp; cur == parent-&gt;right)
<a name="l00481"></a>00481                 cur = parent;
<a name="l00482"></a>00482             cur = parent;
<a name="l00483"></a>00483         }
<a name="l00484"></a>00484     }
<a name="l00485"></a>00485     
<a name="l00486"></a>00486     <span class="keywordflow">return</span> leafs;
<a name="l00487"></a>00487 }
<a name="l00488"></a>00488 
<a name="l00489"></a><a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga3bf7056c3e0714a8e6aae9e91ce7e01e">00489</a> NV_IMPL <span class="keywordtype">void</span> <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga3bf7056c3e0714a8e6aae9e91ce7e01e" title="获取树的信息，包括节点数、深度、叶子数">rblnk_get_info</a>(<a class="code" href="structrblnk__root.html" title="树根">rblnk_root</a>* root, <a class="code" href="structrblnk__info.html" title="树信息表">rblnk_info</a>* info)
<a name="l00490"></a>00490 {
<a name="l00491"></a>00491     <span class="keywordtype">size_t</span> cnt = 0;
<a name="l00492"></a>00492     <span class="keywordtype">size_t</span> leafs = 0;
<a name="l00493"></a>00493     <span class="keywordtype">size_t</span> cur_depth;
<a name="l00494"></a>00494     <span class="keywordtype">size_t</span> max_depth = 0;
<a name="l00495"></a>00495     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> parent;
<a name="l00496"></a>00496     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> cur = root-&gt;node;
<a name="l00497"></a>00497     
<a name="l00498"></a>00498     <span class="keywordflow">if</span> (cur) {
<a name="l00499"></a>00499         cur_depth = 1;
<a name="l00500"></a>00500         <span class="keywordflow">while</span> (cur-&gt;left) {
<a name="l00501"></a>00501             cur = cur-&gt;left;
<a name="l00502"></a>00502             ++cur_depth;
<a name="l00503"></a>00503         }
<a name="l00504"></a>00504         max_depth = cur_depth;
<a name="l00505"></a>00505         <span class="keywordflow">do</span> {
<a name="l00506"></a>00506             ++cnt;
<a name="l00507"></a>00507             <span class="comment">/* 如果有右孩子，往右边走 */</span>
<a name="l00508"></a>00508             <span class="keywordflow">if</span> (cur-&gt;right) {
<a name="l00509"></a>00509                 cur = cur-&gt;right;
<a name="l00510"></a>00510                 ++cur_depth;
<a name="l00511"></a>00511                 <span class="comment">/* 找右孩子下最靠左的节点 */</span>
<a name="l00512"></a>00512                 <span class="keywordflow">while</span> (cur-&gt;left) {
<a name="l00513"></a>00513                     cur = cur-&gt;left;
<a name="l00514"></a>00514                     ++cur_depth;
<a name="l00515"></a>00515                 }
<a name="l00516"></a>00516                 <span class="keywordflow">if</span> (cur_depth &gt; max_depth)
<a name="l00517"></a>00517                     max_depth = cur_depth;
<a name="l00518"></a>00518             } <span class="keywordflow">else</span> {
<a name="l00519"></a>00519                 <span class="keywordflow">if</span> (!cur-&gt;left)
<a name="l00520"></a>00520                     ++leafs;
<a name="l00521"></a>00521                 <span class="comment">/* 如果没有右孩子，向父节点走 */</span>
<a name="l00522"></a>00522                 <span class="keywordflow">while</span> ((parent = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gac9b28b4b852f74baf30eda817e2144b1" title="得到父节点">rblnk_parent</a>(cur)) 
<a name="l00523"></a>00523                         &amp;&amp; cur == parent-&gt;right) {
<a name="l00524"></a>00524                     cur = parent;
<a name="l00525"></a>00525                     --cur_depth;
<a name="l00526"></a>00526                 }
<a name="l00527"></a>00527                 cur = parent;
<a name="l00528"></a>00528                 --cur_depth;
<a name="l00529"></a>00529             }
<a name="l00530"></a>00530         } <span class="keywordflow">while</span> (cur);
<a name="l00531"></a>00531     }
<a name="l00532"></a>00532     
<a name="l00533"></a>00533     info-&gt;<a class="code" href="structrblnk__info.html#a76d971a3c552bc58ba9f0d5fceae9806" title="节点数">count</a> = cnt;
<a name="l00534"></a>00534     info-&gt;<a class="code" href="structrblnk__info.html#a820c167ceaaa9759b0ca2695d22db55c" title="深度">depth</a> = max_depth;
<a name="l00535"></a>00535     info-&gt;<a class="code" href="structrblnk__info.html#a62f3b2ad4f6c6147d1bb9a71dd8c9656" title="叶子数">leafs</a> = leafs;
<a name="l00536"></a>00536 }
<a name="l00537"></a>00537 
<a name="l00538"></a><a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga6fb9e1cd4db306f16e55518361f0ab84">00538</a> NV_IMPL <span class="keywordtype">size_t</span> <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga6fb9e1cd4db306f16e55518361f0ab84" title="获取树的节点总数">rblnk_count</a>(<a class="code" href="structrblnk__root.html" title="树根">rblnk_root</a>* root)
<a name="l00539"></a>00539 {
<a name="l00540"></a>00540     <span class="keywordtype">size_t</span> cnt = 0;
<a name="l00541"></a>00541     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> i = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gad090e3e5ab9b4f09b94e968233554a6b" title="得到指向正向起始位置的迭代器">rblnk_begin</a>(root);
<a name="l00542"></a>00542 
<a name="l00543"></a>00543     <span class="keywordflow">while</span> (i) {
<a name="l00544"></a>00544         <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gabed6ad3d2a4042d6a2c382515eb95393" title="迭代器递增">rblnk_inc</a>(i);
<a name="l00545"></a>00545         ++cnt;
<a name="l00546"></a>00546     }
<a name="l00547"></a>00547 
<a name="l00548"></a>00548     <span class="keywordflow">return</span> cnt;
<a name="l00549"></a>00549 }
<a name="l00550"></a>00550 
<a name="l00551"></a><a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga8d93bfeca0ce469728f2b4c735ce106a">00551</a> NV_IMPL <span class="keywordtype">size_t</span> <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga8d93bfeca0ce469728f2b4c735ce106a" title="计算两个节点的迭代距离">rblnk_distance</a>(<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> first, <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> last)
<a name="l00552"></a>00552 {
<a name="l00553"></a>00553     <span class="keywordtype">size_t</span> dist = 1;
<a name="l00554"></a>00554     
<a name="l00555"></a>00555     <span class="keywordflow">while</span> (first != last) {
<a name="l00556"></a>00556         <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gabed6ad3d2a4042d6a2c382515eb95393" title="迭代器递增">rblnk_inc</a>(first);
<a name="l00557"></a>00557         ++dist;
<a name="l00558"></a>00558     }
<a name="l00559"></a>00559     
<a name="l00560"></a>00560     <span class="keywordflow">return</span> dist;
<a name="l00561"></a>00561 }
<a name="l00562"></a>00562 
<a name="l00563"></a><a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga1de1ae60df6b6cfa2a6db141b00cc636">00563</a> NV_IMPL <span class="keywordtype">size_t</span> <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga1de1ae60df6b6cfa2a6db141b00cc636" title="计算迭代器的正向索引">rblnk_index_of</a>(<a class="code" href="structrblnk__root.html" title="树根">rblnk_root</a>* root, <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> itr)
<a name="l00564"></a>00564 {
<a name="l00565"></a>00565     <span class="keywordtype">size_t</span> cnt = 0;
<a name="l00566"></a>00566     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> i = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gad090e3e5ab9b4f09b94e968233554a6b" title="得到指向正向起始位置的迭代器">rblnk_begin</a>(root);
<a name="l00567"></a>00567     
<a name="l00568"></a>00568     <span class="keywordflow">while</span> (i &amp;&amp; i != itr) {
<a name="l00569"></a>00569         <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gabed6ad3d2a4042d6a2c382515eb95393" title="迭代器递增">rblnk_inc</a>(i);
<a name="l00570"></a>00570         ++cnt;
<a name="l00571"></a>00571     }
<a name="l00572"></a>00572     
<a name="l00573"></a>00573     <span class="keywordflow">return</span> cnt;
<a name="l00574"></a>00574 }
<a name="l00575"></a>00575 
<a name="l00576"></a><a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga29756a41c72f28650f4469334f43c015">00576</a> NV_IMPL <span class="keywordtype">size_t</span> <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga29756a41c72f28650f4469334f43c015" title="计算迭代器的逆向索引">rblnk_reverse_index_of</a>(<a class="code" href="structrblnk__root.html" title="树根">rblnk_root</a>* root, <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> itr)
<a name="l00577"></a>00577 {
<a name="l00578"></a>00578     <span class="keywordtype">size_t</span> cnt = 0;
<a name="l00579"></a>00579     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> i = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gae58917b51be46e3525e90954cd3ab664" title="得到指向逆向起始位置的迭代器">rblnk_rbegin</a>(root);
<a name="l00580"></a>00580     
<a name="l00581"></a>00581     <span class="keywordflow">while</span> (i &amp;&amp; i != itr) {
<a name="l00582"></a>00582         <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga5eef1427f5a3b2719c945271d9daeab6" title="迭代器递减">rblnk_dec</a>(i);
<a name="l00583"></a>00583         ++cnt;
<a name="l00584"></a>00584     }
<a name="l00585"></a>00585     
<a name="l00586"></a>00586     <span class="keywordflow">return</span> cnt;
<a name="l00587"></a>00587 }
<a name="l00588"></a>00588 
<a name="l00589"></a>00589 NV_IMPL <span class="keywordtype">void</span> __do_rblnk_recurse_foreach(<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> cur, 
<a name="l00590"></a>00590                                 <span class="keywordtype">void</span> (*fn)(<span class="keywordtype">void</span>*), <span class="keywordtype">size_t</span> offset)
<a name="l00591"></a>00591 {
<a name="l00592"></a>00592     <span class="keywordflow">if</span> (cur) {
<a name="l00593"></a>00593         __do_rblnk_recurse_foreach(cur-&gt;left, fn, offset);
<a name="l00594"></a>00594         fn(((<span class="keywordtype">char</span>*)cur) - offset);
<a name="l00595"></a>00595         __do_rblnk_recurse_foreach(cur-&gt;right, fn, offset);
<a name="l00596"></a>00596     }
<a name="l00597"></a>00597 }
<a name="l00598"></a>00598 
<a name="l00599"></a>00599 NV_IMPL <span class="keywordtype">void</span> __do_rblnk_recurse_reverse_foreach(<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> cur, 
<a name="l00600"></a>00600                                 <span class="keywordtype">void</span> (*fn)(<span class="keywordtype">void</span>*), <span class="keywordtype">size_t</span> offset)
<a name="l00601"></a>00601 {
<a name="l00602"></a>00602     <span class="keywordflow">if</span> (cur) {
<a name="l00603"></a>00603         __do_rblnk_recurse_reverse_foreach(cur-&gt;right, fn, offset);
<a name="l00604"></a>00604         fn(((<span class="keywordtype">char</span>*)cur) - offset);
<a name="l00605"></a>00605         __do_rblnk_recurse_reverse_foreach(cur-&gt;left, fn, offset);
<a name="l00606"></a>00606     }
<a name="l00607"></a>00607 }
<a name="l00608"></a>00608 
<a name="l00609"></a>00609 NV_IMPL <span class="keywordtype">void</span> __rblnk_serialize(<a class="code" href="structrblnk__root.html" title="树根">rblnk_root</a>* root, <span class="keywordtype">void</span>** buf, <span class="keywordtype">size_t</span> offset)
<a name="l00610"></a>00610 {
<a name="l00611"></a>00611     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> i = <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gad090e3e5ab9b4f09b94e968233554a6b" title="得到指向正向起始位置的迭代器">rblnk_begin</a>(root);
<a name="l00612"></a>00612 
<a name="l00613"></a>00613     <span class="keywordflow">while</span> (i) {
<a name="l00614"></a>00614         <span class="keywordtype">void</span>* p = ((<span class="keywordtype">char</span>*)i) - offset;
<a name="l00615"></a>00615         *buf++ = p;
<a name="l00616"></a>00616         <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#gabed6ad3d2a4042d6a2c382515eb95393" title="迭代器递增">rblnk_inc</a>(i);
<a name="l00617"></a>00617     }
<a name="l00618"></a>00618 }
<a name="l00619"></a>00619 
<a name="l00620"></a>00620 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">size_t</span> RBLNK_F(<span class="keywordtype">size_t</span> i, <span class="keywordtype">size_t</span> resv)
<a name="l00621"></a>00621 {
<a name="l00622"></a>00622     <span class="keywordflow">if</span> (i + 1 &gt;= resv)
<a name="l00623"></a>00623         <span class="keywordflow">return</span> i + resv;
<a name="l00624"></a>00624     <span class="keywordflow">return</span> (i &lt;&lt; 1) + 1;
<a name="l00625"></a>00625 }
<a name="l00626"></a>00626 
<a name="l00627"></a>00627 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">size_t</span> RBLNK_P(<span class="keywordtype">size_t</span> i, <span class="keywordtype">size_t</span> d, <span class="keywordtype">size_t</span> b)
<a name="l00628"></a>00628 {
<a name="l00629"></a>00629     <span class="keywordflow">return</span> ((i &gt;&gt; d) &lt;&lt; d) + b;
<a name="l00630"></a>00630 }
<a name="l00631"></a>00631 
<a name="l00632"></a>00632 NV_IMPL <span class="keywordtype">void</span> __rblnk_deserialize(<a class="code" href="structrblnk__root.html" title="树根">rblnk_root</a>* root, <span class="keywordtype">char</span>** buf, 
<a name="l00633"></a>00633                                     <span class="keywordtype">size_t</span> cnt, <span class="keywordtype">size_t</span> offset)
<a name="l00634"></a>00634 {
<a name="l00635"></a>00635     <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a> pi, pj, pp;
<a name="l00636"></a>00636     <span class="keywordtype">size_t</span> i, r, h, c, t, s, d, lv;
<a name="l00637"></a>00637     <span class="keywordflow">if</span> (!cnt) {
<a name="l00638"></a>00638         root-&gt;node = NULL;
<a name="l00639"></a>00639         <span class="keywordflow">return</span>;
<a name="l00640"></a>00640     } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (cnt == 1) {
<a name="l00641"></a>00641         pp = (<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a>)((*buf) + offset);
<a name="l00642"></a>00642         root-&gt;node = pp;
<a name="l00643"></a>00643         pp-&gt;parent_color = RBLNK_BLACK;
<a name="l00644"></a>00644         <span class="keywordflow">return</span>;
<a name="l00645"></a>00645     }
<a name="l00646"></a>00646     h = 0; c = 1; lv = 0;
<a name="l00647"></a>00647     s = 1; d = 2; t = cnt;
<a name="l00648"></a>00648     <span class="keywordflow">while</span> (t &gt;&gt;= 1) {
<a name="l00649"></a>00649         ++lv;
<a name="l00650"></a>00650         c &lt;&lt;= 1;
<a name="l00651"></a>00651     }
<a name="l00652"></a>00652     r = cnt - (--c);
<a name="l00653"></a>00653     <span class="keywordflow">while</span> (++h &lt; lv) {
<a name="l00654"></a>00654         i = s - 1;
<a name="l00655"></a>00655         s &lt;&lt;= 1;
<a name="l00656"></a>00656         <span class="keywordflow">while</span> (i &lt; c) {
<a name="l00657"></a>00657             <span class="keywordtype">size_t</span> p = RBLNK_P(i, h + 1, s - 1);
<a name="l00658"></a>00658             pp = (<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a>)
<a name="l00659"></a>00659                 (buf[RBLNK_F(p, r)] + offset);
<a name="l00660"></a>00660             pi = (<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a>)
<a name="l00661"></a>00661                 (buf[RBLNK_F(i, r)] + offset);
<a name="l00662"></a>00662             pp-&gt;left = pi;
<a name="l00663"></a>00663             i += d;
<a name="l00664"></a>00664             pj = (<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a>)
<a name="l00665"></a>00665                 (buf[RBLNK_F(i, r)] + offset);
<a name="l00666"></a>00666             pp-&gt;right = pj;
<a name="l00667"></a>00667             <span class="keywordflow">if</span> (h &amp; 1) {
<a name="l00668"></a>00668                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga53c43d6dc5b3cb6ab7a416fae7c5f80a" title="同时设置节点的父节点和颜色值">rblnk_set_parent_color</a>(pi, pp, RBLNK_BLACK);
<a name="l00669"></a>00669                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga53c43d6dc5b3cb6ab7a416fae7c5f80a" title="同时设置节点的父节点和颜色值">rblnk_set_parent_color</a>(pj, pp, RBLNK_BLACK);
<a name="l00670"></a>00670             } <span class="keywordflow">else</span> {
<a name="l00671"></a>00671                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga53c43d6dc5b3cb6ab7a416fae7c5f80a" title="同时设置节点的父节点和颜色值">rblnk_set_parent_color</a>(pi, pp, RBLNK_RED);
<a name="l00672"></a>00672                 <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga53c43d6dc5b3cb6ab7a416fae7c5f80a" title="同时设置节点的父节点和颜色值">rblnk_set_parent_color</a>(pj, pp, RBLNK_RED);
<a name="l00673"></a>00673             }
<a name="l00674"></a>00674             <span class="keywordflow">if</span> (h &lt; 2) {
<a name="l00675"></a>00675                 pi-&gt;left = NULL;
<a name="l00676"></a>00676                 pi-&gt;right = NULL;
<a name="l00677"></a>00677                 pj-&gt;left = NULL;
<a name="l00678"></a>00678                 pj-&gt;right = NULL;
<a name="l00679"></a>00679             }
<a name="l00680"></a>00680             i += d;
<a name="l00681"></a>00681         }
<a name="l00682"></a>00682         d &lt;&lt;= 1;
<a name="l00683"></a>00683     }
<a name="l00684"></a>00684     root-&gt;node = pp;
<a name="l00685"></a>00685     pp-&gt;parent_color = RBLNK_BLACK;
<a name="l00686"></a>00686     <span class="keywordflow">for</span> (i = 0; i &lt; r; ++i) {
<a name="l00687"></a>00687         pp = (<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a>)
<a name="l00688"></a>00688             (buf[((i &gt;&gt; 1) &lt;&lt; 2) + 1] + offset);
<a name="l00689"></a>00689         pi = (<a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga588a122bb585e30d2dbc7ef1e6cb0297" title="迭代器">rblnk_iter</a>)
<a name="l00690"></a>00690             (buf[i &lt;&lt; 1] + offset);
<a name="l00691"></a>00691         pi-&gt;left = NULL;
<a name="l00692"></a>00692         pi-&gt;right = NULL;
<a name="l00693"></a>00693         <span class="keywordflow">if</span> (i &amp; 1)
<a name="l00694"></a>00694             pp-&gt;right = pi;
<a name="l00695"></a>00695         <span class="keywordflow">else</span>
<a name="l00696"></a>00696             pp-&gt;left = pi;
<a name="l00697"></a>00697         <a class="code" href="group___xE7_xBA_xA2_xE9_xBB_x91_xE6_xA0_x91.html#ga53c43d6dc5b3cb6ab7a416fae7c5f80a" title="同时设置节点的父节点和颜色值">rblnk_set_parent_color</a>(pi, pp, RBLNK_RED);
<a name="l00698"></a>00698     }
<a name="l00699"></a>00699 }
<a name="l00700"></a>00700 
<a name="l00701"></a>00701 <span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00702"></a>00702 <span class="preprocessor"></span>}
<a name="l00703"></a>00703 <span class="preprocessor">#endif  </span><span class="comment">/* #ifdef __cplusplus */</span>
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